Fossil succession relative dating

Radiometric dating and many other techniques are used to support the idea that this transformation process took tens and hundreds of millions of years.

Single celled organisms make their first appearance in the lowest layers followed by multicelled ocean bottom-dwelling creatures like sponges and worms etc.The nested subset pattern arises because species differ in their distributions across space.Some species use a wider range of resources or persist across a wider range of habitats than others (Brown, 1984; Brown et al., 1996; Hanski and Gyllenberg, 1997).The scientific method is all about testing and retesting theories since no theory is ever proven by science.The scientific method can only disprove theories or increase the power of previous predictions that have yet to be disproved, but it can never absolutely prove anything to be absolutely true.